Home / 1,215,685.27-1,821,897.90-946,138.88

Finding the Fourth Proportional to 1,215,685.27, 1,821,897.90 and 946,138.88

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Solution

The fourth proportional to 1,215,685.27, 1,821,897.90 and 946,138.88 is: 1,417,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,685.27 : 1,821,897.90 = 946,138.88 : x
  2. Step 2: Convert to fraction form
    1,215,685.27/1,821,897.90 = 946,138.88/x
  3. Step 3: Cross multiply
    1,215,685.27x = 1,821,897.90 × 946,138.88
  4. Step 4: Simplify right side
    1,215,685.27x = 1,723,768,438,580.35
  5. Step 5: Solve for x
    x = 1,723,768,438,580.35/1,215,685.27
  6. Step 6: Final answer
    x = 1,417,939.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.